New Hose Clamps are Now Used in the Coolant Lines Group of Certain 700 Series Articulated Trucks {1087, 1380} Caterpillar

Articulated Truck

725C (S/N: T261-90105; TFB1-833)

725C2 (S/N: 2T31-112; TA71-90104)

730C (S/N: T281-104; TFF1-1410)

730C EJECTOR (S/N: TFH1-160)

730C2 (S/N: 2T41-123)

730C2 EJ (S/N: 2T51-131)

735C (S/N: TFJ1-221)

740C EJECTOR (S/N: TFN1-178)

745C (S/N: JE81-116; TFK1-1300)

Description Of Change: New hose clamps are now used in the coolant lines group of the products listed above. The new hose clamps will increase clamping force and prevent leaking.

Adaptable To: The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.

• If hose o.d. is less than 13.3 mm (0.52 inch), then use 510-2512 Clamp.

• If hose o.d. is greater than 13.3 mm, then use 539-1248 clamp. Also if the larger diameter hose is used, then 3U-2752 Clip will need to be replaced by 344-5360 Clip.

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Illustration 1	g06135963
Hose connection (1) 510-2512 Clamp

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Illustration 2	g06135968
Top view showing upper hose connection (1) 510-2512 Clamp or 539-1248 Clamp

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Illustration 3	g06135972
Bottom view showing lower hose connection (1) 510-2512 Clamp or 539-1248 Clamp

1. Remove and discard four existing 431-9388 Clamps and replace with four clamps (1) that fit 332-7785 Hose. Refer to Illustration 1, Illustration 2, and Illustration 3 for detailed views of the clamp locations.

2. Crimp clamps (1) into place using plier tool (A).

   Note: After new clamps (1) are installed, run the machine and check for leaks.